Oil-pump.



F. R. PORTER.

OIL PUMP.

APPucATloN man Nov.22.1916.

Patented Sept. 4, 1917.

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'olL PUMP.

APPLICATION FILI-IAD NOV. 22. 1916.

Patented Sept. 4, 1917.

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FrNLEY R. PORTER, OF FORT JEFFERSON, NEW YORK, assrGNoR To FINLEY ROBERT- son PORTER COMPANY, INC., oF FORT JEFFERSON, NEW YORK, `A coRPoRA'rrON OF DELAWARE.

OIL-PUMP.

Patented Sept. d, 199i?.

Application filed November 22, 1916. Serial No. 132,818.

To all whom t may vconcern Be it known that I, FINLEY R. PORTER, a

citizen of the United States, and residentof Port Jefferson, in the county of Suffolk and State of New York, have invented a newand useful Improvement in Oil-Pumps, of which the following is a specification.

In actual practice it has been found very difiicult, if not impossible, ,to successfully produce a circulating oil pump for internal combustion `engines which will work efiiciently at both low and high engine speeds. When the pump has been designed especially for pumping oil at low engine speeds, it has been found ineiiicient Or inoperative to pump oil at high engine speeds and vice versa.

The object of my invention is to produce anfoil pump arranged to pump the Oil efficiently at all speeds, means being provided 0r independently regulatingv kthe amount of oil pumped to difterent points, whereby a certain point or certain points may receive a.` greater amount of oil than another point or other points as is essential in many of the uses for which the pump is designed.

.The pump generally comprises coacting reciprocating and rotary elements, the reciprocating elements serving to` positively pump the oil at low speeds and the rotary pump the .oil by centrifugal action at high speeds. 1

The pump more particularly comprises a casing having axial inlet and peripheral Outlets,v in which casing a barrel rotates around theaXial inlet, said barrel having two or more chambers therein arranged at different distances from and parallel to the aXis of rotation of the barrel, said chambers having inlet and outlet ports arranged respectively nearer to and farther away from the axis of rotation of the barrel, said inlet and outlet ports being brought into and out of communication with the axial inlet and peripheral outlets of the casing Yas the` barrel is rotated; plungers being located in said oil chambers and reciprocatedas the barrel is rotated by two or more pairs` of concentric upper and lower stationary .calms havinginclined parallel faces alongwhich 4the opposite ends of their respective plungers'travel; means being employed to independently adjust each pair of upper and lower cams to change thestroke of the plunger or plungers operated thereby for regulating the amount` 1 Ofoilpumped to different points.

A practical embodiment of my invention 1s represented in the accompanying drawings in which,

Figure l is a top plan view of the pump;

Fig. 2 is a side view,

Fig. 3 is a section taken in the plane of the line III-III of F 1;

Fig. it is a horizontal section `taken `in the plane of the line IV-QIV of Fig. 3;

Fig. 5 is a horizontal section taken in the plane ofthe line V-V of Fig. 3;

Fig. 6 is a vertical section taken in the plane of the line VI-VI of Fig. 3, and

Fig. 7 is a vertical section takenl in the plane of the line VIL-VII of Fig. 3.

The oil pump casing comprisesthe main portion 17, and the side extension 18. The main portion of the casinghas a plurality of transverselyv arranged oilA discharge ports 19Jextending part way around the bore 20. In' the present instance, where the pump is designed for dischargingoilto eight differ ent sources, eight of these transversely arranged ports 19 are rprovided in eight different horizontal planes. A barrel 21 rotates in thebore 20 of the` casing intermediate its top and bottom, which barrel `is provided with an uprising shaft 22, by means of which the barrel may be rotated from any desired source of power, as, for instance, from the engine, not shown, in connection with which the pump is to be used. This rotary barrel is supported in its position by providing the shaft 22 with a nut 23 which bears upon the cover 24` of the casing through which the shaft 22 projects. This shaft 22 also has a bearing 25 in the cap 2G of the cover 2i. The rotary barrel 21 has a central bore 27 opening through its bottom, into which bore is introduced an open-ended tube 28 projecting upwardly from a plate 29 which closes the bottom of the bore 20 of the casing.

,A ring 30 screwed into the bottom of the bore 20, serves to hold the plate 29 and its tube 2S in position.

A suitable oil screen 31v is interposed between the plate 29 and ring 30. Pairs of concentric upper and lowei` stationary cam rings are introduced into the bore, 20, above and below the rotary barrel l 21.l In the present instance, I have shown two pairs of` these upper and lower cam rings. The upper outer cam ring 82 isprovided with diametrically opposed hollow trunnions 33, `34, mounted to turn inthe casing 17, the hollow trunnion 34 being provided within the ei;-

'tension 18, with a gear 35. The upper inmounted to turn in the casing 17, the trunnion 42 being provided with a gear 43 within the extension 18. The lower inner cam ring 44 is provided with diametrically vopposed trunnions 45, 46, mounted to turn in the hollow trunnions 41, 42, the trunnion 46 projecting beyond the trunnion 42, and being provided with a gear 47 within the casing extension 18.

The outer and inner pairs of upper and lower concentric cam rings are rocked independentlyby two shafts 48, 49, respectively, the shaft 48 being provided with gears 50, 51, meshing with the gears and 43 respec tively, andthe shaft 49 being provided with gears 52, 53, meshing with the gears 39, 47 respectively. The shafts 48, 49, are mounted in suitable bearings in the casing eXtension and project upwardly through the cover 24, in position where they ,may be turned by a key or other suitable operating device.

These pairs of upper and lower cam rings are provided with parallel inclined inner faces for engaging the opposite ends of their respective pump plungers, which pump plungers are mounted to reciprocate in oil chambers arranged at different distances from and parallel to the axis of rotation of the barrel 21. AIn the present instance, I

have `shown eight of these oil'chambersand their 'respectivevplungera four of these chambers 54, being so arranged that their plungers l55 will be operated by the in-` clined parallel faces of the upper and lower cam rings 32, 40 of the outer pair, and four l chambers 56 being so. arranged that their plungers 57 will be operated by the parallel inclined faces of the inner pair'of-the upper y and lower cam rings 3G, 44. Each of the outer oil chambers 54 has an inlet port 58V and an outlet port 59, arranged to be brought into communication with the vertically` elongated port 60 in the side wall of the axially arranged inlet tube 28 and its transversely arranged outlet port 19 respectively of the casing as the barrel is rotated. Similarly, each of the inneroil chambers 56 has an Iinlet port 61 and an outlet port 62, ar ranged to beV brought into communication with the vertically elongated port 6() of the axial inlet tube 28 and its transversely arranged outlet port 19, respectively of the casingias the barrel is rotated.

It is understood that each one of these plungers comprises a head fitted to the boreA of its oil chamberand projecting V'into engagement with the inclined face of the lower` cam ring and a reduced stem projectingup' lower cam rings so that the amount'of oilf pumped to different points can be independently regulatedV and atr the same time the amount of oil pumped to 'all of the different points can be regulated, the rocking of the cams in one direction serving to increase the strokes of the plungers to increase the supV ply of oil and the rocking ofthe cams in the other direction serving to decrease the strokes of the plungers and consequently decrease the amount of oilpumped thereby'.

It is evident that the means which I have disclosed for varying the strokes of `the plungers is only one of the many embodiments' which I mayemploy for this purpose, and it is also obvious that the pump may-be4 adapted 'for discharging any streams of oil.l

Innperation, whenl .the pump is `number of reciprocation ofthe plungers. I/Vhen-the pump is driven at high speeds, as, for in#A stance, ata high engine speedLthe rotary movement of the barrel, together with the.V l

cause the Voil to be drawn into and forced 1 from the bore by centrifugal action, thus insuring an ample supply of oil atlhigh speeds as well as at lowspeeds by this-com bined centrifugal and positive actionoffthe pump.

It is evident that various changesmay be resorted to in the construction,- form and ar-V being" driven at low speeds, as, for instancefat a low engine speed, the oil will be'drawn into and forced from the pump positively by th'el rangement of the `various Vpartswithout departing from the `spirit and scope` ofmy inventlon, and hence I do not wishto limit myself strictlyto the construction herein shown and described, but' Vhat I claim is: 4

`1. In kan oil pump, means to pump and by centrifugal action at high speeds, and means forV independentlyr regulating the points.

f. I j the oil to different points positively at'low'speedsA r amount of oil `pun1ped to said different'.`

means to pumptheoil to said different'points 1130 by centrifugal action at high speeds and means for independently regulatin the amount of oil pumped to said di erent points.

3. In an oil pump, reciprocating means to pump the oil to different points positively at low speeds, means to pump the oil to said dierent points by centrifugal action at high speeds, and means for independently regulating the amount of oil pumped to said different points.

4. In an oil pump, means to pump the oil to different points positively at low speeds, rotary means to pump the oil to said diifer ent points by centrifugal action at high speeds, and means for independently regue lating the amount of oil pumped to said different points.

5. In an oil pump, reciprocating means to pump the oil to different points positively at low speeds, rotary means to pump the oil tosaid different points by centrifugal action at high speeds, and means for independently regulating the amount of oil pumped to said dierent points.

6. In an oil pump, a plurality of reciproeating elements and a rotary element coacting to pump the oil to different points positively at low speeds and by centrifugal action at high speeds, the strokes of different reciprocating elements being independently changeable for regulating the amount of oil pumped.

7. In an oil pump, a plurality of reciprocating elements and a rotary element coacting to pump the oil to different points positively at low speeds and by centrifugal action at high speeds, and adjusting means for independent-ly changing the strokes of different reciprocating elements to regulate the amount of oil pumped.

8. In an oil pump, a plurality of reciprocating plungers and a rotary barrel in which the plungers reciprocate, coacting to pump the oil to different points positively at low speeds and by centrifugal action at high speeds, the strokes of different plungers being independently changeable for regulating the amount of oil pumped.

9. In an oil pump, a plurality of reciprocating plungers and a rotary barrel in which the plungers reciprocate, coacting to pump the oil to different point-s positively at low speeds and by centrifugal action at high speeds, and adjusting means for independently changing the strokes of different plungers to regulate the amount of oil pumped.

10. In an oil pump, a rotary barrel having a plurality of oil chambers with inlet and outlet ports arranged respectively nearer to and farther away from the axis of rotation, plungers reciprocating in said chambers, whereby the oil is pumped to different points positively at low speeds by the reciprocation of the plungers and is pumped by centrifugal action at high speeds by the rotary movement of the barrel, and adjusting means for independently changing the strokes of different plungers to regulate the amount of oil pumped.

11. In an oil pump, a casing having an axial inlet and peripheral outlets, a barrel rotating in said casing having oil chambers with inlet and outlet ports arranged to be brought into and out of communication with the casing inlet and outlets by the rotary movement of the barrel, plungers reciprocating in said chambers, whereby the oil is pumped to different points positively at low speeds and by centrifugal action at high speeds, and adjusting means for independently changing the strokes of different plungers to regulate the amount of oil pumped.

l2. In an oil pump, a plurality of reciprocating plungers, a rotary barrel in which the plungers reciprocate, coacting to pump the oil to different points positively at low speeds and by centrifugal action at high speeds, and pairs of upper and lower adjustable cam rings having parallel inner faces engaging the upper and lower ends of different plungers to reciprocate them for regulating the amount of oil pumped.

13. In an oil pump, a plurality of reciprocating plungers, a rotary barrel in which the plungers reciprocate, coacting to pump the oil to different points positively at low speeds and by Centrifugal action at high speeds, and independently adjustable pairs of upper and lower cam rings having parallel inner faces engaging the upper and lower ends of different plungers to reciprocate them for regulating the amount or 105 oil pumped.

14. In an oil pump, a plurality of reciprocating plungers, a rotary barrel in which the plungers reciprocate, coacting to pump the oil to different points positively at low 110 speeds and by centrifugal action at high speeds, pairs of upper and lower cam rings having parallel inner faces engaging the upper and lower ends of different plungers to reciprocate them, and adjustable means 115 for independently rocking each pair of cam rings to change the strokes of the plungers for regulating the amount of oil pumped.

In testimony, that I claim the foregoing as my invention, I have signed my name 120 this 10th day of November, 1916.

FINLEY It. PORTER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of @atenta Washington, ID. C. 

